baber/WOPTO huggingface dataset:
Patent GB-834378-A (GB)
Title: A process for the preparation of unsaturated ketones and novel unsaturated compounds used therein
IPC: C07C49/20
Filed: 1958-04-01
Abstract: The invention comprises compounds of the formulae <FORM:0834378/IV (b)/1> or <FORM:0834378/IV (b)/2> wherein R1 represents an alkyl group containing 1-5 carbon atoms, R2 represents the methyl group containing 1-5 carbon atoms, R2 represents the methyl group, or R1 and R2 together represent the pentane-ethylene radical, R3 represents an acyl group and R30 is an acyl radical; and a process for the manufacture of unsaturated ketones which process comprises treating an ester of the formula <FORM:0834378/IV (b)/3> or <FORM:0834378/IV (b)/4> (where R1, R2 and R3 are as above defined) or a derivative thereof containing a methyl group as a substituent on the fourth, fifth or sixth carbon atom (counting from the acetylenic end), with an acidic agent in the presence of a metal or metal compound of Group IA of the Periodic System and hydrolysing the reaction product in an alkaline medium in the presence of a lower aliphatic acyclic or cyclic ketone of the general formula <FORM:0834378/IV (b)/5> (wherein X is a hydrogen atom or a lower aliphatic group and Y is a lower aliphatic group or X and Y together represent a lower aliphatic divalent group as shown by the broken line) to give a ketone of the general formula <FORM:0834378/IV (b)/6> (wherein R1, R2, X and Y are as above defined), or a derivative thereof containing a methyl group as a substituent on the fifth, sixth or seventh carbon atom (counting from the carbon atom adjacent to the keto group).  As acidic agents there may be used acetic propionic or butyric acids, sulphuric and phosphoric acid.  As catalysts there may be used cupric oxide or the acetates, carbonates, oxalates, nitrates and sulphates of copper and silver.  Examples describe the preparation of pseudoionone, methyl - pseudoionone, allyl - pseudoionone, n-methyl - isomethyl - pseudoionone and methyl-pseudoionone.
Patent GB-862038-A (GB)
Title: Improvements in or relating to an optical measuring device
IPC: G01B11/14
Filed: 1959-03-25
Abstract: 862,038. Photo-electric ganging. ZEISSSTIFTUNG, C., [trading as ZEISS, C. [Firm of]]. March 25, 1959 [March 29, 1958], No. 10449/59, Class 40(3) [Also in Group XX] A device for measuring the dimensional difference of an object from a standard object, or for automatically focusing a microscope, comprises means for projecting the images of two marks such that the images are coincident at the position of the surface of the standard object and means for measuring the displacement of the device necessary to bring the images to coincidence on the surface of the object to be measured. A first embodiment, Fig. 1, comprises a light source 1, slit 2, and diaphragm 3 which divides the light into two beams. The beams are focused to coincidence on the surface of a standard object 6. Light reflected from the surface is directed on to a photocell 8 through a diaphragm 7 which may be triangular, Fig. 2. Measurement may be by displacement of the device as a whole or by adjustment of two plates of glass rotatably interposed in the two light beams. Alternatively, wedge-shaped plates may be used. A flicker diaphragm 9 cyclically interrupts the two beams. If now an object having a surface 10 is substituted for the standard 6 the images on the surface are separate so that the output of the photocell 8 will vary according to the position of diaphragm 9. The output is amplified, and rectified in dependence on its phase by comparison with the voltage driving diaphragm 9. A motor 15 is driven by the rectifier output and adjusts the position of the device or the plates until coincidence of the images at the surface 10 is re-attained. A counter 18 indicates the amount of movement. The output of the photocel 8 may alternatively lead direct to an indicator. A contactor may be provided connected to the housing of the device so that when a contact corresponding to a certain thickness of object is closed the object may be sorted into an appropriate container. In a second embodiment, Fig. 3 (not shown), the device of Fig. 1 is modified in that a somewhat more elaborate optical system is used, and adjustment of the device is. made by movement of one lens in the system. A further embodiment, Fig. 4, is used in the automatic focusing of a microscope represented by lenses 40, 41. Light from a source 48 passes through the slit 52, and is divided into two beams by a diaphragm 44 to give two images on the object 42 which coincide when the microscope is in focus. If the apparatus is not in focus the light beams are imaged in the plane of slit 52, and prisms 45, 46 deflect these beams on to photocells 49, 50. Preferably a triangular diaphragm is arranged on the prism sides in the plane of slit 52. The output of the photocells controls the displacement of the microscope. By replacing the lamp 48 by illuminated slits at 51 only one photocell is required.
Patent GB-1387902-A (GB)
Title: Closing device for a pneumatic system
IPC: F16K15/00
Filed: 1972-03-07
Abstract: 1387902 Valves SOC ANON PRONAL 7 March 1972 [12 March 1971] 10516/72 Heading F2V [Also in Division G3] A closing device. 12 for a pneumatic system comprises a bag or bladder defined by two deformable fluid tight sheets 13, 15 with a closing face co-operable with an annular seat 18 adjacent an aperture and an orifice in communication with the exterior medium or the pneumatic system so that pressure variations in the bag or bladder result in its expansion or contraction and the opening and closing of the aperture. The bag which is preferably circular and made of coated fabric, is provided with ribs for separating the two sheets in the region of the orifice. The two sheets are secured at their edges by a V-section member of rubberized fabric. In Fig. 1 the invention is incorporated in the inlet of a fan, as shown with the fan off and the aperture closed. Switching on of the fan causes a decrease in the pressure in the bag and hence the opening of the aperture. In Fig. 5 the device is adapted as a relief valve by incorporating a pilot valve 51 comprising a gravity controlled closure member 54 and a calibrated washer 58 in the pipe 45 to create a preferential flow path through the pipe 48. In the event of excess pressure in the pipe 47 opening the valve 51, air is preferentially exhausted from the bag and the force 15 moves away from seat 18 and the air is able to escape via orifices 61 in ring 11. (For Figures see next page.)
Patent GB-565262-A (GB)
Title: Improvements in impeller blades of screw fans
IPC: F04D29/38
Filed: 1943-06-29
Abstract: 565,262. Screw fans. COLLIERY ENGINEERING, Ltd., and REEVES, H. C. June 29, 1943, No. 10535. [Class 110 (i)] The blade a of a screw fan is made from a curved single sheet provided at the leading edge with a streamlined thickening b formed either by bending back the sheet material or by attaching a curved bar &c. to the sheet, the transverse width of b decreasing progressively from the root to the tip of the blade at a greater rate than the width of the blade, as shown in Fig. 1. In another form, b extends only part of the way towards the tip, in another it extends the full width of the blade at the root, and in another it extends from the tip only part of the way towards the root.
Patent GB-850676-A (GB)
Title: Engine liquid cooling system
IPC: F02N19/10
Filed: 1959-03-26
Abstract: 850,676. Cooling systems for internal combustion engines. CASSELL, W. C. March 26, 1959 [June 19, 1958], No. 10539/59. Class 64(3) [Also in Group XXIX] Compressible means formed of elastic resilient material are disposed in the cooling water spaces of a liquid cooled internal combustion engine. The compressible means may comprise solid or hollow cylindrical members 40 of rubber, retained in their operative positions in the engine cooling water spaces by means of wires 45 and such members may be provided in the cylinder block 11 and on the head 12. The invention is said to be intended for use under conditions of very low temperature wherein the cooling water freezes solid when the engine is out of use, and in the system shown for use under such conditions similar compressible means are also provided in the bottom header of the engine cooling radiator 20. Further safety precautions against freezing pressures comprise the formation of concave wall portions 50 in the bottom header of the radiator and the provision of a pressure relief valve 65 (see Group XXIX) which it is said, is connected to any isolated cavities in the engine in which pressure may not be adequately relieved. To prevent damage to the pump 30 on starting up the engine with the coolant frozen, a slipping drive connection is provided between the engine shaft 25 and the pump driving shaft 31, and to provide a limited path for coolant as soon as possible under such starting conditions an electric heating wire connected to the battery, extends through one of the radiator tubes and through the hoses 21, 22 connecting the radiator to the engine. The wire is energized as required by the operator of the engine. A detachable windshield member 60 may be used to cover that part of the radiator in which the heating element is fitted and such member is said also to assist in the thawing out of the overflow pipe 24 which is located near the heating element.
Patent GB-105876-A (GB)
IPC: A44C5/22
Abstract: 105,876. Grant, E. C. Dec. 8, 1916. Watch bracelets. - A watch strap which has slidablv mounted thereon a guard 12 having loops 13, 14 is connected at one end to a loop 11, the other end being passed through the loop 11 and connected to a hook member 18 which is engaged with the loop 14. The hook member has slots 16, 17 so that the strap may be readily adjusted.
Patent GB-751147-A (GB)
Title: Improvements in or relating to once-through, forced flow, tubulous boilers
IPC: F22B29/08
Filed: 1954-04-09
Abstract: 751,147. Forced-flow steam boilers; blowdown apparatus. BABCOCK & WILCOX, Ltd. April 9, 1954 [April 10, 1953], No. 10590/54. Class 123(2). A forced-flow, once-through steam boiler has parallel connected steam generating tubes 11, 11<SP>1</SP> which, beyond their transition sections, are connected by tubes 12, 12<SP>1</SP> to two rows of centrifugal separators 1 disposed one row on each side of the boiler, each separator being connected to a single steam generating tube or to a group of such tubes. The steam outlet pipes from the separators terminate in collectors 2, 21 whence tubes 9, 91 lead respectively to superheater inlet headers 10, 10<SP>1</SP>. Each separator 1 has a liquid discharge tube 3 extending downwardly to one of a pair of collecting pipes 4, 41 each located several feet below the level of the respective separator row. The pipes 4, 4<SP>1</SP> lead into a common collecting vessel 5 the liquid level in which is held constant by a drain valve 7 controlled by a float 6. Individual tubes 11, 11<SP>1</SP> or tube groups have washing liquid supply connections before their transition zones whereby the tube or tube group may be flushed periodically. During the washing of a particular tube or tube group, the substantial difference in height between vessel 5 and the separators ensures a good discharge of the liquid and prevents flooding of any other separator connected to a tube or tube group not being washed.
Patent GB-1502812-A (GB)
Title: High intensity ionic bombardment reactor for thermochemical treatment processes
IPC: C23C8/36
Filed: 1975-03-14
Abstract: 1502812 Gas discharge apparatus H MICHEL and M GANTOIS 14 March 1975 [19 March 1974] 10698/75 Heading H1D A leading-in arrangement for a conductor 1 passing through the envelope 4 of an ion bombardment discharge apparatus comprises an insulator 3 through which the conductor 1 passes and which supports a sleeve 5 of conductive or insulating material coaxial with the conductor 1 and spaced therefrom by a gap of width d which is too small, having regard to the gas pressure, to support a discharge to the surface of the conductor. The conductor 1 is provided with one or more ducts 2 for extracting gas from the envelope to reduce the gas pressure in the gap to a suitable level. Typically, for a gas pressure of 5 mm. Hg d would be about 0À2 mm.
Patent GB-996556-A (GB)
Title: Improvements in or relating to control systems for transport mechanisms
IPC: B66B1/16
Filed: 1963-03-09
Abstract: 996,556. Selective lift control systems. DEWHURST & PARTNER Ltd., and G. E. MINNS. March 17, 1964 [March 19, 1963], No. 10784/63. Heading B8L. In a lift system incorporating a floor finding switch, such as that described in Specification 859,233, car demand precedence is provided whereby landing calls are held and blocked while the passenger initiates his call by the car push-button. A difference in magnitude and polarity of signals or the difference between A.C. and D.C. may be used to effect this discrimination. As shown in Fig. 1, when car stops to answer call PR1 changes over to line L5, maintaining holding circuits for FUW or FDW through diodes UD or DD, but applying a blocking potential to diodes D1, D2, relative to L4, so that UW or DW cannot be energized by landing buttons UP, DP at another floor. The car button CP has a direct line to the interceptor control circuit ICC.
Patent GB-1498321-A (GB)
Title: Offshore foundation structure
IPC: E02B17/02
Filed: 1976-03-17
Abstract: 1498321 Offshore structures INGENIOR F SELMER A/S 17 March 1976 [21 March 1975] 10828/76 Heading E1H The supporting structure of working platform 34 comprises a lower set of columns 2, 4, 6 inclined upwardly towards each other. The lower ends of the columns are intertied in a horizontal direction by a lower stiffening structure 8, 10, 12 and are arranged in operation to rest on the sea floor. Buoyant and ballastable intertieing box structure 16 connects the upper ends of the lower set of columns in a horizontal direction and an upper buoyant and ballastable set of columns 24, 26, 28 extends from the intertie box structure to support the working platform above sea level.
Patent GB-843049-A (GB)
Title: Improvements in vertical boring mills
Inventor: HAKE WALTER THOMAS
IPC: B23B39/02
Filed: 1958-04-03
Abstract: 843,049. Boring- and turning-mills. AMERICAN STEEL FOUNDRIES. April 3, 1958, No. 10865/58. Class 83 (3). A vertical boring-mill comprises a saddle 2 movable along a horizontal rail 6, a ram 20 in a swivelling section 44 of the saddle and carrying a tool turret (not shown) and a feed shaft 8 along which a clutch element 22 is movable as the saddle traverses the rail, the element 22 being clutched selectively to means 11, 14 for feeding the ram or swivelling the section 44. The saddle is fed by a lead screw 10 disposed beneath the feed shaft, which is mechanically interlocked with the motor for rotating the turntable (not shown). The saddle may be clamped to the rail by clamps 4 engaging the top and bottom of the rail. Worms 11, 14 mounted in the saddle and through which passes the splined shaft 8, may be selectively clutched to the shaft by engagement between clutch teeth 28, 30, thereon and teeth 24, 26 on the clutch element 22. The latter is shifted to engage either worm by a lever 70, which rotates a helical cam 74 (Fig. 5, not shown), engaging an inclined slot in an axially movable shaft 76, thus moving the shaft and clutch element 22, which is connected to the shaft by a finger 80. Catches 94 (Fig. 5, not shown) hold the lever in its two extreme positions to each side of the neutral position depicted in Fig. 1. The worm 11 drives a wormwheel 34 on a shaft 36 which carries a pinion 40 engaging an arcuate rack 42 secured to the swivelling section 44, which rotates on a part 48 of the saddle. Locking mechanisms 53 may secure section 44 after adjustment. Worm 14 drives a worm-wheel 51 on a shaft 52 geared at 58, 60 to a shaft 62 in the swivelling section. A pinion 64 on shaft 62 meshes with a feed-rack 66 on the ram 20.
Patent GB-841773-A (GB)
Title: Method and device for the automatic control and lateral guiding of webs of paper, plastic material, textiles or other materials in working machines for such material webs
IPC: B65H23/032
Filed: 1957-04-03
Abstract: 841,773. Automatic control systems for moving webs. RAWE, M. April 3, 1957 [April 5, 1956], No. 10955/57. Class 38 (4). In a control system for a paper, fabric or like, web 15 drawn from a roll 16, wherein lateral deviation of the web from a prescribed path is detected by an electric, or photoelectric, sensing device 14 controlling means, such as a reversible electric motor 27, which axially shifts the roll 16 in such a direction as to connect the deviation, the system operates intermittently under the control of a switching mechanism responsive to speed of travel of the web, so that correction is effected in a series of steps. The switching mechanism may comprise a roller 19 driven by the moving web and rotating a striker 1 through gearing 7-12 such that the striker makes one revolution in a time slightly greater than that required for the web to travel from the roll 16 to the sensing device 14. During a period of each revolution, in which the striker engages a roller 2, a switch 3-5 is actuated to energize a time-delayed release relay which for a short period closes the control circuit between the sensing device 14 and the motor 27. The apparatus shown is for forming paper bags, the paper web passing from the sensing device 14 to a longitudinal gluing device 21 to a tube-forming device 20 and finally to cutters 17, 42 for parting the tube into sections.
Patent GB-335528-A (GB)
Title: Improvements in and relating to focal plane shutters
IPC: G03B9/34
Filed: 1929-04-09
Abstract: 335,528. Fairchild, S. M. April 9, 1929. Shutters, roller-blind.-A shutter of the type in which adjustable braking means are provided to maintain the speed of the shutter uniform during an exposure and to vary the speed for exposures of different duration is mounted in conjunction with an interlocking device so as to prevent release of the shutter driving means when the speed control means are moved to inoperative position. In an aerial camera embodying the invention, part of the braking means is mounted on a hinged plate 65, Fig. 1, on which are two cams 88 and 94. When the plate is moved outward, an L-shaped lever 85, normally engaging the cam 88 enters a notch in the firing pin 48. A second lever (not shown) pivoted to the casing and having teeth on one edge, engages a pinion on the shutter driving spool when the cam 94 is moved out of contact with it. The shutter spools are carried in a casing 10, between the lens mount B and film magazine A, and are hollow, a driving spring being mounted inside each. The shutter winding means comprises a shaft 33, Fig. 4, having a winding handle and bearing a pinion 34 meshing with a gear 25 which rotates the shaft in one direction only through a member 26, Fig. 6, having a shoulder 27 co-operating with a spring-urged dog 28, the shaft 23 having a gear meshing with a pinion on the take-up spool. A single revolution of the gear 24 serves to wind the spring of the spool, and means is provided to stop the gear after a complete revolution. To release the shutter, a pin 48 presses on the tail of the dog, moving it clear of the shoulder 27. A worm 36, Fig. 4, on the shaft 33 serves to wind on the film during the re-winding of the shutter, a revolution counter being provided. The speed control means comprises a pallet wheel 62 driven through a tongue and recess connection 63 from the gear 25, and co-operating with pallets 64, Fig. 7, the friction of which provides the braking force, which may be varied by moving more of the pallets into or out of engagement with the wheel 62 by turning the knob 66 on the outside of the camera. The pallets may be mounted on a common shaft or on a series of shafts spaced round the wheel.
Patent GB-611633-A (GB)
Title: Improvements in addressing and like series printing machines
IPC: B41L47/24
Filed: 1946-04-10
Abstract: 611,633. Addressing &c. machines; ink ribbons. MURRAY, S.M. April 10, 1946, No. 11015. [Classes 100(ii) and 100(iv)] In addressing or like machines of the kind comprising mechanisms for feeding printing-plates and a continuous form stationery strip intermittently to printing position, mechanism is provided for periodically advancing a record sheet or web across the printing position through a distance shorter than that of the periodic advance of the stationery strip and for feeding a transfer strip across the printing position between the record sheet and an adjacent stationery strip in a direction transverse to the direction of travel of the record sheet, the mechanisms being actuated intermittently and in timed relationship. Printing-plates are fed from a magazine 3 to printing position 7 beneath a platen 8 carried by a rocking arm 9, a strip 6 is fed across the position 7 and up an apron 2 by pin feed mechanism as described in Specification 465,985, a record sheet 11 above the strip 6 is fed by a gear sector 22 engaging teeth on the under side of a bar 18 having ratchet teeth on its upper side engaged by a pawl 17 on a box 16 fixed by a screw to a rod 15 connected to a rod 13 carrying a clamp 10 gripping one edge of the sheet 11, and a transfer strip 5 is fed transversely to the strips 6 and 11 by mechanism 4 as described in Specification 521,822. The transfer strip is coated on its under side over its whole width and on its upper side over a portion only of its width so as to print the whole of the matter on the printing-plate on to the stationery strip and a selected part only on to the record sheet. The pawl 17 may be released from the rack by pulling on a cord 31 connected to an arm 29 adapted to release the pawl. Specification 558,840 also is referred to.
Patent GB-990160-A (GB)
Title: Amplitude stabilized capacitor-charged scan generator
Inventor: BLAXTON PETER WILLIAM
IPC: H03K6/04
Filed: 1961-03-27
Abstract: 990,160. Automatic amplitude control. RANK-BUSH MURPHY Ltd. March 27,1962 [March 27, 1961], No.11049/61. Heading G3R. [Also in Division H3] In a deflection circuit for a cathode-ray tube, of the type in which a sawtooth voltage is developed by the alternate charge and discharge of a capacitor and is amplified and used to develop a sawtooth current in deflection coils, the amplitude is stabilised by control of the voltage applied to charge the capacitor in accordance with the difference between a reference voltage and the voltage developed across the deflection coils. In Fig. 2, capacitor 4 is charged via resistors 5, 6 and discharged via valve 3 under control of synchronising pulses supplied to terminal 1. The sawtooth voltage is coupled by a linearising circuit 8 to a deflection amplifier 9 and via transformer 11 to deflection coils 13. The circuit is made self-oscillatory by feedback via capacitor 31. The deflection amplitude is adjustable by potentiometer 18 which controls the current in valve 19 and hence the charging rate of capacitor 4. The cathode voltage of valve 19 is stabilised by a gas-filled tube 20. The voltage across deflection coils 13 is rectified at 15, smoothed at 16 and fed to the grid of valve 19 to stabilise the deflection amplitude when the frequency of the synchronizing pulses at 1 is changed e.g. 50-60 c/s. Linearising arrangements are described (see Division H3). Fig. 1 (not shown) relates to a single-stroke sawtooth generator. The valves may be replaced by transistors.